pillowcase (also `pillowslip)

n removable washablecover made of cotton, linen, etc for a pillow 枕套.

pilchard, pile, pile up, pile-driver, pile-up, piles, pilfer, pilferage, pilferer, pilgrim, pilgrimage, pill, pillage, pillar, pillar-box, pillbox, pillion, pillory, pillow, pillow-fight, pilot, Pilot Officer, pilot-boat, pilot-fish, pilot-light (also `pilot-burner), pimento, pimp, pimpernel, pimple, pimpled, pimply, pin, pin down, pin-ball, pin-head, pin-money, pin-stripe, pin-table, pin-up, pinafore,